9-bis[(4-hydroxyethoxy)phenyl]fluorene industry

9,9-bis[(4-hydroxyethoxy)phenyl]fluorene, also known as bisether wat, 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene, 4,4′ -(9-fluorenylidene)bis(2-phenoxyethanol), etc., abbreviated as BPEF in Engl…